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850306P Avanti

07:0 PC (DHPC)

1,2-diheptanoyl-sn-glycero-3-phosphocholine, powder

Synonym: DHPC; PC(7:0/7:0)

  • CAS Number 39036-04-9

  • Empirical Formula (Hill Notation) C22H44NO8P

  • Molecular Weight 481.56

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Properties

Related Categories Avanti PC & LPC, Avanti Phospholipids, Avanti Polar Lipids Products, Biochemicals and Reagents, Lipids More...
assay   >99% (TLC)
form   powder
packaging   pkg of 1 × 1 g (850306P-1g)
  pkg of 1 × 200 mg (850306P-200mg)
  pkg of 1 × 25 mg (850306P-25mg)
  pkg of 1 × 500 mg (850306P-500mg)
mfr. no.   Avanti Polar Lipids, 850306P
shipped in   dry ice
storage temp.   −20°C
SMILES string   [O-]P(OCC[N+](C)(C)C)(OC[C@]([H])(OC(CCCCCC)=O)COC(CCCCCC)=O)=O
InChI   1S/C22H44NO8P/c1-6-8-10-12-14-21(24)28-18-20(31-22(25)15-13-11-9-7-2)19-30-32(26,27)29-17-16-23(3,4)5/h20H,6-19H2,1-5H3/t20-/m1/s1
InChI key   RBFSPQDASPEAID-HXUWFJFHSA-N

Description

General description

The list of Phosphatidylcholine products offered by Avanti is designed to provide compounds having a variety of physical properties. Products available include short chain (C3-C8 are water soluble and hygroscopic), saturated, multi-unsaturated and mixed acid PC′s. All of the products are purified by HPLC, and special precautions are taken to protect the products for oxidization and hydrolysis. DHPC is an ultra pure compound.

Application

1,2-diheptanoyl-sn-glycero-3-phosphocholine (DHPC) has been in the extraction buffer for RNA isolation from mice cortex samples and glial cells. It has also been used for the suspension of the protein loaded anti-GFP (green fluorescent protein) beads prior to immunoprecipitation.

Biochem/physiol Actions

DHPC preserves the native conformation and therefore the activity of the solubilized proteins. The three dimensional structure and activity of proteins are retained not only at the 10-15mM DHPC concentrations at which maximum solubilization usually occurs, but also over a large range of DHPC concentrations (up to 40mM). Not only is the three dimensional structure and hence the activity of most protein retained in excess DHPC, but the proteins also appear to be stable in DHPC. Such a result suggests that the direct interaction of DHPC with integral membrane proteins is weak. If the interaction of DHPC with membrane proteins is indeed weak, it follows that intrinsic membrane lipids will remain associated with the membrane proteins. Solubilization Mechanism DHPC is thought to exert a wedge-like effect on the neighboring lipids, mainly due to its bulky polar group and short hydrocarbon chains. This produces membrane destabilization at relatively low DHPC concentrations. All membranes investigated are solubilized at an identical DHPC / lipid ratio. This finding is taken as evidence that DHPC primarily interacts with the lipid bilayer and not with the membrane proteins. The principle underlying the preservation of the native protein structure is the inability of DHPC to displace intrinsic membrane lipids from integral membrane proteins.Advantages of DHPC: DHPC preserves the activity of solubilized membrane proteins. DHPC is not readily oxidized, and is stable over a wide pH range (4-10). DHPC forms micelles rather than bilayers when dispersed in water. (CMC = 1.4mM). DHPC shows a broad size distribution depending on the NaCl concentration of suspension. DHPC does not interfere with spectrophotometric measurements.

Packaging

20 mL Clear Glass Screw Cap Vial (850306P-200mg)

30 mL Amber Wide Mouth Bottle with Screw Cap (850306P-500mg)

5 mL Clear Glass Sealed Ampule (850306P-25mg)

60 mL Amber Wide Mouth Screw Cap Glass Bottle (850306P-1g)

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Critical Micelle Concentrations (CMCs) - Avanti® Polar Lipids

The critical micelle concentration (CMC) can be approximately defined as the lipid monomer concentration at which appreciable amounts (>5% of total) of micellar aggregates first begin to appear in th...
Keywords: Biochemistry

Storage & Handling of Lipids - Avanti® Polar Lipids

The following statements pertain specifically to Avanti’s lipid products for research and should not necessarily be applied to cGMP lipids intended for pharmaceutical or diagnostic applications.
Keywords: Diagnostic, Oxidations, Pharmaceutical, Solvents

Protocols

Determination of Phospholipid Oxidation by UV/VIS Spectroscopy - Avanti® Polar Lipids

The percent oxidation of a phospholipid can be determined by using Beer’s Law to calculate the peroxidized phospholipid’s concentration from its absorbance at 234 nm.
Keywords: Extinction coefficient, Oxidations

General Lipid/BSA Solubilization Protocol For Cell Delivery

Water Solutions: Solubilizing some lipids is difficult using organic solvents. Typically, lipids are suspended in methanol to aliquot, the methanol is then dried and the residue dispersed using fatty...
Keywords: Evaporation, Solvents

Peer-Reviewed Papers
15

References

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